'Happier than ever' Simon Cowell steps out with ex-fiancée Mezhgan Hussainy... as it's revealed his baby with Lauren Silverman will be 'born in the UK'

He might be having a baby with socialite Lauren Silverman, but Simon Cowell's former flames are still very much in his life.
The music mogul's ex-fiancé Mezhgan Hussainy, who still works as his make-up artist, accompanied him to a taping session of The X Factor USA on Saturday, as news emerged that his child is set to be born in the UK.
Although 36-year-old socialite Lauren is American and lives in New York, the pair have agreed it is best for the baby to be born in Simon's native country because it fits in with his Britain's Got Talent filming schedule.

'I'm happier than I've ever been': Simon Cowell stepped out with former fiancée Mezhgan Hussainy on Saturday after speaking about partner Lauren Silverman's pregnancy

Working hard: Mezhgan, who still works as Simon's make-up artist on occasion, was seen accompanying him to a taping of The X Factor USA on Saturday

An insider told the Sunday People newspaper: 'He is thrilled that the baby will be born in England. He and Lauren have taken the decision based on what is best for the baby and they've chosen the UK.
'Because Simon has to be in the UK for BGT at the time, it is the only option. He wants to be at Lauren's side when she gives birth and wants to be with his son after he's born.'
The 53-year-old star also opened up on The Ellen DeGeneres Show in an interview to air on Tuesday and admitted news of Lauren's pregnancy was a 'shocker'.

Good spirits: Cowell beamed as he was photographed outside the studios

Peace out: Simon flashed the peace sign as he and Mezhgan headed inside

He said: 'That was a bit of a shocker. When you first get the call, it's like, OK, put the phone down, gulp. And then I got used to the idea.'
Referring to the fact that Lauren was still married to husband Andrew when news of her pregnancy broke, Simon added: 'It was kind of uncomfortable, you know, the situation. But these things happen and everything i kind of calm now and I'm happy. I'm actually happier than I've ever been. Everything's fine now and Lauren's adorable.'
He also used the opportunity as a chance to hit back at disparaging rumours about his baby mama, Lauren - insisting she's not a gold-digger.
He said: 'I obviously can’t blame the media - it was kind of what I call a juicy story. But there was a lot of stuff that was said about her: that she trapped me and that she’s a gold-digger.
'It's absolute nonsense. She’s a great girl but, like I said, it was awkward because of the circumstances.'

In the hot seat! In an interview that airs on Tuesday, Simon Cowell sat down with Ellen Degeneres, who relentlessly hounded him on the sex of his baby with girlfriend Lauren Silverman

Cowell also refused to confirm the gender of his baby, despite reports that he and Lauren are expecting a little boy. 
'And it’s a boy?' Ellen asked him, to which Simon replied: 'You’ll have to wait and see.'
He then added: 'Well, there are a lot of boys in my family so the odds are...'
Meanwhile, it has emerged that Lauren and Simon are now in the middle of planning a £1.27million interview deal with Oprah Winfrey.
The pair are said to be 'seriously considering' a two-hour interview special on Oprah's OWN network, with the Sunday Express suggesting the show would air during the third season of The X Factor USA, which premieres on Wednesday.
If the interview goes ahead the couple are set to receive a reported £1.27million fee - which is remarkably close to the amount of money Lauren lost out on during her divorce battle with Andrew.

'It’s going to be a boy': Ellen tried to trick the star into revealing baby Cowell's sex, even presenting him with matching mini-me clothing

'I think she found it very uncomfortable': The 53-year-old was joined by new X Factor judge Kelly Rowland as he discussed the reason behind Britney Spears' exit from the show

According to reports, the judge awarded Lauren with only half of the money she had been expecting through her prenuptial agreement, in exchange for her retaining full custody of her and Andrew's seven-year-old son Adam.
A source said of the reported Oprah deal: 'Simon wants Lauren to keep every penny they make from any interviews. It’s his pretty neat way of making sure she gets the cash she felt she was entitled to from her marriage.'
Meanwhile, Simon continued to receive more well-wishes from his celebrity pals as he appeared on The Tonight Show With Jay Leno on Friday.

'I've known you what, 12 or 15 years? I never thought I'd say this: congratulations! You're going to be a dad! That's amazing!' veteran talkshow host Leno gushed.

'I never thought I'd say this: congratulations!' The star sat down with old friend Jay Leno for an interview on The Tonight Show on Friday, where he was congratulated on his exciting baby news

'Am I? Yeah, that was a bit of a shocker. When you first get the call, it's like, OK, put the phone down, gulp. And then I got used to the idea. The circumstances were a bit awkward...' Simon said as he pulled an hilarious facial expression that summed up the awkwardness perfectly.
Fellow guest, comedian Adam Carolla, couldn't resist giving the notorious lothario a bit of a dig, though it was all in good spirits and the 53-year-old enjoyed a good laugh at his own expense.

'The revolving door of hot stepmoms coming through... Oh what a life!' Adam teased the father-to-be.

Still remaining coy on whether baby Cowell is a boy or girl, the star would only confirm that it's, 'One of the two.'

Not letting up: Just like Ellen, Jay pushed Simon to reveal the gender of his baby, even asking, 'Gimme a clue: does it have testicles?'

His lips are sealed! Simon would only confirm that the child is 'One of the two' - either a boy or girl - though he admitted, 'I do know what it is

'Oh what a life!' Comedian Adam Carolla couldn't help having a good-natured dig at the father-to-be

'Gimme a clue: does it have testicles?' Jay pressed.
'That would kind of be giving it away,' the Brit replied, to which the host was quick to respond, 'Well not in LA!'

While he managed not to spill the closely-guarded secret, Cowell admitted, 'I do know what it is,' before talking about his hopes for his offspring.

'If it's a boy, I kind of hope he turns out like me as I was older, not when I was child - cause when I was a child I was obnoxious,' he laughed.

Come on, just between you and me...: Jay leaned in for a conspiratorial quiet chat with his longtime friend during the commercial breaks